Manufacture of thread bands from artificial silk



March 5, 1940.

G. CAMPOLUNGHI MANUFACTURE OF THREAD BANDS FROM ARTIFICIAL SILK Filed NOV. 27, l935 Patented Mar. 5, 1940 UNITE STATES PATENT OFFr E Tl a at jMANUFACTURE F THREAD BANDS FROM ARTIFICIAL SILK 1 Giovanni Campolunghi, Rome, Italy, assignor to Societa Anonima Minerva, Rome, Italy, a lim-, 1 .f ited company of Italy ""j Application November 27, 1935, Serial No. 51,963

In Italy November 30, 1934 v 3 Claims. (01. 18-54) According to the known process for the conits discharge from the spinning machine, is tinuous manufacture of thread bands from artistored by means of a suitable device in special ficial silk the band supplied from the spinning containers from which this band can then be remachine is taken over immediately by the wash moved by the washing machine.

5 ing device and is supplied at the same speed at Such a device is illustrated schematically by I which it was spun through a row of containers, way of example in the drawing and in which: in which it undergoes various treatments (sul- Fig. 1 is a View, partly in elevation and partly phur-removal, bleaching, reviving) or even in section. washing processes before and after the difierent Fig. 2 is a plan of a band distributor which treatments. seizes the thread band I upon its discharge from 10 The subject of the invention is a process for the spinning machine 2 and stores it in suitable the continuous manufacture of thread bands receivers 3 in such a way that it can be subsefrom artificial silk which is more particularly quently drawn off by a washing machine 4 withcharacterised by the fact that it produces a comout danger of tangling.

plete independence between the spinning ma- In practice it has been found to be preferable chine and the washing machines. to use two rows of boxes of rectangular cross The advantages resulting from the new procsection as receivers from the spun thread band, ess as compared with the first mentioned known the number in each row corresponding to the process are of many kinds, and of great impornumber of bands which the washing machine tance. treats simultaneously in the above described so Above all, the operating conditions or thespinmanner. ning machine and the washing machine can now Whilst one row of boxes 3 is filled with spun be freely altered, without any reciprocal comthread band by means of the distributor 5 of the bination in accordance with the working respinning machine the other row of boxes 3' quirements at any time. Possible stops and in- (which has been filled in a previous operation) 25 terruptions of work in the treatments in the can be emptied to supply the washing machine. baths no longer require the stopping of the spin- The band distributor 5 must be so arranged ning machine, thus fulfilling an essential prelimthat it first of all gives a drawing off movement inary condition for high production from the in the direction of the band axis (arrow 11.) and spinning machine. The washing machines can then two movements extending transversely to 30 now run at a slower speed than the spinning each other in order to fill each box correctly machine and several bands can be treated simul- (arrow 1)). Moreover it must move from box to taneously on the washing machines, and the box in each row in order to fill successively all containers which are now traversed by the bands the boxes in this row progressively in the direcat a slower rate can be made correspondingly tion of the axis of each row (arrow 0) and finally 86 shorter and nevertheless produce an equal or after filling one row it must be guided transhigher output. versely to the direction of thearrow '0 over the Moreover the new process assures the complete adjacent row of empty boxes (arrow (1) in order coagulation of the spun artificial silk before the to fill these boxes in a subsequent working period.

4 treatment in the washing or sulphur removing All these movements can be easily carried out as 40 baths begins since now it need no longer happen automatic movements. that an incompletely coagulated material is sup- What I claim is; plied into the baths. 1. Process for the continuous manufacture of The process according to the invention enables staple fiber wherein a band of endless fiber comthread bands of artificial silk, which on account ing from a spinning machine is subjected to a 45 of certain working requirements were not comtr t t h as hi lf removing, p y Coagulated, to be further treated by bleaching, reviving and the like, comprising-conmechanical means. In these cases the thread tinuously depositing the single band coming from hand collected at the outlet of the spinning the spinning machine consecutively in th machine is treated with a suitable coagulating tainers of a first set of containers, and contembath before it is given over to the washing device. poraneously removing th deposited b d i 1 Th independence between e Spinning mataneously from a plurality of containers of a chine and the washing machine can be produced previously filled set of containers in the form of without adversely aiiecting the continuity of the a. plurality of bands and conveying the latter to process if the thread band of artificial silk, on the point of treatment, whereby the removing 55 operation may be effected at a lower rate of speed than the depositing operation.

2. Process for the continuous manufacture of staple fiber wherein a band of endless fiber coming from a spinning machine is subjected to a treatment such as Washing, sulfur removing, bleaching, reviving and the like, comprising continuously depositing the single band coming from the spinning machine consecutively in the containers of a first set of containers, and contemporaneously removing the deposited band simultaneously from a plurality of containers of a previously filled set of containers in the form of a plurality of bands and conveying the latter to the point of treatment, and continuing the GIOVANNI CAMPOLUNGHI. 

